package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.constants.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.mongodb.client.result.DeleteResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

/**
 * @Program: day57-leadnews
 * @Description:
 * @Data: 2022/8/4 15:06
 **/

@Service
@Slf4j
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    RabbitTemplate rabbitTemplate;

    /**
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
        // 1. 校验参数
        // 点赞需要登录
        Integer userId = AppThreadLocalUtils.getUser().getId();
        Integer equipmentId = dto.getEquipmentId();
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(userId, equipmentId);
        // 校验文章id不能为空     使用注解校验
        // 校验点赞方式 只能是0 或 1   使用注解校验
        // 2. 根据当前登录用户id查询行为实体对象
        Query query = Query.query(Criteria.where("entryId").is(apBehaviorEntry.getId()).and("articleId").is(dto.getArticleId()));
        ApLikesBehavior apLikesBehavior = mongoTemplate.findOne(query, ApLikesBehavior.class);
        // 3. 如果是点赞操作  判断是否已经点过赞
        if (apLikesBehavior == null && dto.getOperation() == 0){
            // 4. 没有点过赞则 像mongo点赞集合中 添加点赞数据
            apLikesBehavior = new ApLikesBehavior();
            apLikesBehavior.setEntryId(apBehaviorEntry.getId());
            apLikesBehavior.setArticleId(dto.getArticleId());
            apLikesBehavior.setCreatedTime(new Date());
            mongoTemplate.save(apLikesBehavior);
//            return ResponseResult.okResult(apLikesBehavior);
        }else {
            // 5. 如果是取消点赞操作  在mongo点赞集合中 删除对应点赞数据
            DeleteResult result = mongoTemplate.remove(query, ApLikesBehavior.class);
//            return ResponseResult.okResult(result);
        }
        // 发送点赞行为消息，用于修改文章行为汇总数量 更改文章热度
        NewBehaviorDTO mess = new NewBehaviorDTO();
        mess.setType(NewBehaviorDTO.BehaviorType.LIKES);
        mess.setArticleId(dto.getArticleId());
        mess.setAdd(dto.getOperation() == 0 ? 1 : -1);
        rabbitTemplate.convertAndSend(
                HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE,
                JSON.toJSONString(mess));
        log.info("点赞行为 发送消息 ==>{}",JSON.toJSONString(mess));
        return ResponseResult.okResult();
    }
}
